Supporting the new HACS 2.0 platform?

[blue-bean]

Checklist

• [X] I have filled out the template to the best of my ability.
• [X] This only contains 1 feature request (if you have multiple feature requests, open one feature request for each feature request).
• [X] This issue is not a duplicate feature request of previous feature requests.

Is your feature request related to a problem? Please describe.

The new HACS 2.0 comes without support of the sensor platform. Using the Grünbeck integration needs sensor definitions in YAML - so the question is if we could upgrade to HACS 2.0 without losing the sensors?

Describe the solution you'd like

No need to define sensors in YAML?

Describe alternatives you've considered

Additional context